bool FromBMP(quint8** out, int& outwidth, int& outheight, int& outbytes, const qstring& file)
{
FILE* infile = fopen(file.c_str(), "rb");;
if( !infile )
return false;
fseek(infile, 0, SEEK_END);
long length = ftell(infile);
fseek(infile, 0, SEEK_SET);
char* data = (char*)malloc(length);
if( !data )
{
fclose(infile);
return false;
}
fread(data, 1, length, infile);
fclose(infile);
size_t size = FromBMP(out, outwidth, outheight, outbytes, (size_t)length, data);
free(data);
return (0 != size);
}
void ImageLoader(ResourceManager& res,Task* t)
{
//load input file name
std::string fileName=GetElement(t,"filename","ImageLoader",res,false,"");
//load input file format
std::string format=GetElement(t,"format","ImageLoader",res,true,"hlt");
//load file to the buffer
if(format=="hlt")
res.Add(t->name,FromHLT(fileName));
if(format=="bmp")
res.Add(t->name,FromBMP(fileName));
if(format=="raw")
{
int width=(int)ToFloat(GetElement(t,"width","ImageLoader",res,false,""));
int height=(int)ToFloat(GetElement(t,"height","ImageLoader",res,false,""));
res.Add(t->name,FromRAW(fileName,width,height));
}
if(format!="hlt"&&format!="raw"&&format!="bmp")
Log::AddMessage("ImageLoader: Unsupported format "+format,Log::ERR);
}
int main ()
{
quint8* img1 = 0;
quint8* img2 = 0;
quint8* img3;
int width, height, bytes;
if( !FromBMP(&img1, width, height, bytes, "../resources/1.bmp") )
return 1;
if( !FromBMP(&img2, width, height, bytes, "../resources/2.bmp") )
return 1;
img1 = ConvertTo32BPP(img1, width, height);
img2 = ConvertTo32BPP(img2, width, height);
img3 = new quint8[width * height * 4];
quint8 r, g, b;
double a, x, y, z;
quint8 r1, g1, b1;
quint8 r2, g2, b2;
quint8 c1, c2;
int index;
for( int i = 0; i < height; ++i )
{
for( int j = 0; j < width; ++j )
{
index = (i * width + j) * 4;
//if( i == height - 126 - 1 && j == 122 )
// ::_CrtDbgBreak();
r1 = img1[index + 0];
g1 = img1[index + 1];
b1 = img1[index + 2];
r2 = img2[index + 0];
g2 = img2[index + 1];
b2 = img2[index + 2];
if( r1 == r2 && g1 == g2 && b1 == b2 )
{
// same -> no alpha
a = 1.0;
r = r1;
g = g1;
b = b1;
}
else
{
c1 = 255;
c2 = 0;
if( r1 - r2 < 255 )
{
c1 = c1;
c2 = r2;
}
if( g1 - g2 < 255 )
{
if( g2 > c2 )
{
c1 = c1;
c2 = g2;
}
}
if( b1 - b2 < 255 )
{
if( b2 > c2 )
{
c1 = c1;
c2 = b2;
}
}
if( c1 - c2 < 255 )
{
a = (255.0 - (c1 - c2)) / 255.0;
//if( a > 1.0 || a < 0.0 )
// ::_CrtDbgBreak();
x = std::min<double>(r2 / a, 255.0);
y = std::min<double>(g2 / a, 255.0);
z = std::min<double>(b2 / a, 255.0);
r = (quint8)x;
g = (quint8)y;
b = (quint8)z;
}
else
{
// background in both
a = 0.0;
r = 0;
g = 0;
b = 0;
}
}
img3[index + 0] = r;
img3[index + 1] = g;
img3[index + 2] = b;
img3[index + 3] = (quint8)(a * 255.0);
}
}
ToTGA(img3, width, height, 4, "../resources/test.tga");
delete[] img1;
delete[] img2;
delete[] img3;
//system("pause");
return 0;
}
